2019獨角獸企業重金招聘Python工程師標準>>>

#import <UIKit/UIKit.h>@interface ViewController : UIViewController<UITextFieldDelegate>{IBOutlet UITextField *_textField;} - (IBAction)pressButton:(UIButton *)sender; @end #import "ViewController.h" @interface ViewController () @end @implementation ViewController - (void)viewDidLoad {[super viewDidLoad];_textField.delegate=self;// Do any additional setup after loading the view, typically from a nib. } - (BOOL)textFieldShouldReturn:(UITextField *)textField{[self pressButton:nil];return YES; } - (IBAction)pressButton:(UIButton *)sender {if([_textField isFirstResponder]){[_textField resignFirstResponder];}} @end

轉載于:https://my.oschina.net/liyang2l/blog/76243

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